673784487376 has 240 divisors, whose sum is σ = 1861657596288. Its totient is φ = 231783552000.

The previous prime is 673784487317. The next prime is 673784487403.

It is a happy number.

673784487376 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2447926 + ... + 2709226.

Almost surely, 2^673784487376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673784487376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (930828798144).

673784487376 is an abundant number, since it is smaller than the sum of its proper divisors (1187873108912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673784487376 is a wasteful number, since it uses less digits than its factorization.

673784487376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261370 (or 261357 counting only the distinct ones).

The product of its digits is 796594176, while the sum is 70.

The spelling of 673784487376 in words is "six hundred seventy-three billion, seven hundred eighty-four million, four hundred eighty-seven thousand, three hundred seventy-six".